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5 Best Tube Cutters for 7/8" Copper Pipe (2026 Review)

By Max · Islepath · Updated June 2026 · 8 min read

Cutting 7/8" OD copper is the upper limit for most HVAC, plumbing, and refrigeration work. If your tube cutter can't handle it cleanly, you can't do central air, large water heaters, or commercial refrigeration. We tested five cutters that cover 7/8" (22mm) — here are the results.

How We Tested

All five cutters were used on 50+ cuts of soft copper (annealed, type-L, 7/8" OD). We measured cut quality (square, burr), blade wear after 50 cuts, and ergonomics (hand fatigue over a 4-hour workday).

The 5 Cutters

1. CT-274 — Best for HVAC/Plumbing Vans

Range: 4-28mm (1/8″ to 1-1/8″) · Weight: 195g · Price (wholesale): ~$15

Compact, light, fits in your side pocket. Cut quality was square and burr-free across all 50 cuts. Best pick for HVAC techs who need portability.

Pros: Light, durable, includes spare blade.
Cons: Plastic body — not as rugged as all-metal options.

2. CT-312 — Best for Commercial Refrigeration

Range: 6-42mm (1/4″ to 1-5/8″) · Weight: 380g · Price (wholesale): ~$28

Heavier but covers 1-5/8" — useful for commercial lines. All-metal body, very sturdy.

Pros: Wider range, rugged build.
Cons: Heavy for daily carry.

3. CT-274 Plastic Spray Type — Best Budget Pick

Range: 4-28mm · Weight: 180g · Price (wholesale): ~$11

Cheaper variant of the CT-274. Slightly thinner blade, less durable under heavy use. Fine for occasional residential work.

4. CT-428 Bearing Type — Best for Repeated Heavy Use

Range: 4-28mm (3/16″ to 1-1/8″) · Weight: 230g · Price (wholesale): ~$22

Bearing-loaded wheel for smoother rotation. Cut quality was the best of the five. Best for techs who cut 10+ pipes per day.

5. CT-532 Bearing Type — Best All-Metal

Range: 4-32mm · Weight: 280g · Price (wholesale): ~$30

All-metal body, bearing-loaded, widest range in the bearing family. Premium feel, last 5-10 years with proper care.

Comparison Table

Model	Range	Best For
CT-274	4-28mm	Van carry (HVAC/plumbing)
CT-312	6-42mm	Commercial refrigeration
CT-274 Plastic	4-28mm	Budget / occasional
CT-428	4-28mm	Heavy daily use (bearing)
CT-532	4-32mm	Premium all-metal

FAQ

How often should I replace the blade?

Every 200-300 cuts on soft copper. You can sharpen with a diamond file, but a fresh blade is $3 and saves time.

Bearing type vs standard — is it worth the extra cost?

If you cut 5+ pipes per day, yes — bearing type reduces hand fatigue and gives more consistent cuts. If you cut occasionally, standard is fine.

Can I sharpen a dull blade?

Yes with a diamond sharpening stone, but only 2-3 times. After that, the blade shape degrades. Replace it.